100% correct and that is exactly why I don't respect them or their views. They are not interested in civil discussion for the purpose of discovering practical or philosophical truths, they are only interested in being seen as "winning" or being "right" - and they will use any means necessary to achieve that end.
In all honesty, aren't we too just as interested in winning and being right? I mean, you said it yourself, you don't respect them or their views. Why would you expect any different behavior from them? Why would you expect them to look at you any differently?